Prepared roofing.



M. B. BECKER.

` PREPARED ROOFING.

APPLICATION FILED PEB. 1, 1912.

Patented Apr. 30, 1912.

' HATHIAS B. BECKER, 0l' CHICAGO, ILLINOIS.

PREPARED BDGFING.

Specification of Letten Patent.

Patented Apr. 30, 1912.

-Application lcd February 1, 1812. Serial No. 674,821.

To all whom 'it may concern:

Be it known that I, MATHIAs B. BECKER, citizen of the United States, residing at Chicago, in the county of Cook .and State of Illinois, have invented certain new and useful Improvements in Prepared Roofing; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which use the same.

This invention relates to improvements in what is known as prepared roofing and has for its object to provide material of this character having on its exposed side adesign in different colors in. imitat-ion of a shingle or tile roof and which is at the same it appertains to make -and time more durable and eflicient than the' ordinary product.

In the accompanying drawings illustrating the invention: Figure 1 is a plan view of prepared roofing embodying my invention. Fig. -2- is an enlarged fragmentary sectional view of the same.

The rooting consists of wool felt or similar material boiled iny asphaltum which penetrates into and through the same and forms a coating on the surfaces thereof. As the sheets leave the asphaltum kettlesand pass over rolls, etc., they are sprinkled with a granulated grit such as gravel, crushed lime stone, granite, slate, etc., which becomes partially embedded in the still soft and hot coating. The particular grit employed is determined by the color desired to be imarted to the roofing, the effect of each. kind being to protect the exposed face of the material from wear. The roofing cools preparatory to being formed into rolls and these are allowed to stand until cold and are then ready for use, the exposed coated face thereof, when disposed on a roof, being of a uniform color. It is desirable to produce on said coated face a variation of color to give it the appearance of tiles or shingles and to render it more attractive in appearance without 'an appreciableincrease in cost and in such a manner as to render the variation in appearance permanent and advantageous to the wearing qualities and life of the mater1al.

In the companion application filed of even.

date herewith, Serial No. 674,820, I have fully describedthe process for producing a design on the grit coated face of the material which, briefly, consists in applying a coating of a dilute asphaltum compound to such portion ofsaid grit coating, as, for example, to alternate square or diamond shaped fields, whereby a sharp contrast is produced. This coating is of such character as to cut into the asphaltum coating of the wool-felt by partially dissolving the same so that the second coating will become amalv gamated with .the first. Said second coating is applied in such quantity as to penetrate through and completely embed the layer of grit and become amalgamat'ed with the first coating of asphaltum. The last-nameddilute asphaltum coating consists of asphaltum admixed while molten and hot withv creosote or benzin, both of which materials are solvents for asphaltum and will, 'when the second coating contacts with first asphaltum coacting dissolve the same so that the second coating will, when dry, be substantially homogeneous with the first. The resulting material'not only presents anornamental surface but the alternate fields composing the design thereon are reinforced and strengthened to an extent which materially increases the life of the roofing.

In practice it is found that the grit coating of prepared roofing gradually disappears particularly in the winter months when it is carried down by snow and ice. By varying the nature of the surface of the roofing by extending the asphaltumcoating over the grit coating on alternating small fields, the exposed grit coating bocomes disposed in hollows or depressions bordered by the aforesaid fields and is not so easily washed or otherwise carried away so that the life of these portions of the rooting on which the grit coating remains exposed, is

yalso materially increased.

The grit coating in the uncovered fields may be left in the condition 'in which it is found after the second coating has been applied or it may be covered by a coating of a material impregnated with and having surface coatings B and C of asphaltum. The granular grit D is partially embedded in the coating B and alternate fields thereof are covered by--meaiis of a second coating E of dilute asphaltum which completely embeds the grit 1n said elds and becomes amalgamated or 4homogeneous with the coating B. The resulting roofing differs from the ordinary product not only in presenting a varicolored surface but in which one coating is thicker in predetermined spots or fields than in other spots or fields.

I claim as my invention:

Prepared roofing comprising a sheet of fibrous material impregnated and coated with a waterproof material, said coating 'In testimony Whereo I have signed my name 1n presence of two subscribmg Witnesses.

MATHIAS B: BECKER. v Witnesses: I

M. M. BoYLE, RUDOLPH WM. LoTz. 

